1 /***************************************************************************
2 * Copyright (C) 2007 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
8 * Copyright (C) 2008 by Spencer Oliver *
9 * spen@spen-soft.co.uk *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
16 * This program is distributed in the hope that it will be useful, *
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
19 * GNU General Public License for more details. *
21 * You should have received a copy of the GNU General Public License *
22 * along with this program; if not, write to the *
23 * Free Software Foundation, Inc., *
24 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
25 ***************************************************************************/
31 #include "replacements.h"
33 #include "configuration.h"
41 #include <sys/types.h>
46 int fileio_close(fileio_t
*fileio
);
47 int fileio_dispatch_read(fileio_t
*fileio
, u32 size
, u8
*buffer
, u32
*size_read
);
49 int fileio_open_local(fileio_t
*fileio
)
53 switch (fileio
->access
)
61 case FILEIO_READWRITE
:
67 case FILEIO_APPENDREAD
:
71 LOG_ERROR("BUG: access neither read, write nor readwrite");
72 return ERROR_INVALID_ARGUMENTS
;
75 /* win32 always opens in binary mode */
77 if (fileio
->type
== FILEIO_BINARY
)
83 if (!(fileio
->file
= open_file_from_path (fileio
->url
, access
)))
85 LOG_ERROR("couldn't open %s", fileio
->url
);
86 return ERROR_FILEIO_OPERATION_FAILED
;
89 if ((fileio
->access
!= FILEIO_WRITE
) || (fileio
->access
== FILEIO_READWRITE
))
91 /* NB! Here we use fseek() instead of stat(), since stat is a
92 * more advanced operation that might not apply to e.g. a disk path
93 * that refers to e.g. a tftp client */
96 result
= fseek(fileio
->file
, 0, SEEK_END
);
98 fileio
->size
= ftell(fileio
->file
);
100 result2
= fseek(fileio
->file
, 0, SEEK_SET
);
102 if ((fileio
->size
<0)||(result
<0)||(result2
<0))
104 fileio_close(fileio
);
105 return ERROR_FILEIO_OPERATION_FAILED
;
116 int fileio_open(fileio_t
*fileio
, char *url
, enum fileio_access access
, enum fileio_type type
)
118 int retval
= ERROR_OK
;
121 fileio
->access
= access
;
122 fileio
->url
= strdup(url
);
124 retval
= fileio_open_local(fileio
);
129 int fileio_close_local(fileio_t
*fileio
)
132 if ((retval
= fclose(fileio
->file
)) != 0)
136 LOG_ERROR("BUG: fileio_local->file not a valid file descriptor");
140 LOG_ERROR("couldn't close %s: %s", fileio
->url
, strerror(errno
));
143 return ERROR_FILEIO_OPERATION_FAILED
;
149 int fileio_close(fileio_t
*fileio
)
153 retval
= fileio_close_local(fileio
);
161 int fileio_seek(fileio_t
*fileio
, u32 position
)
164 if ((retval
= fseek(fileio
->file
, position
, SEEK_SET
)) != 0)
166 LOG_ERROR("couldn't seek file %s: %s", fileio
->url
, strerror(errno
));
167 return ERROR_FILEIO_OPERATION_FAILED
;
173 int fileio_local_read(fileio_t
*fileio
, u32 size
, u8
*buffer
, u32
*size_read
)
175 *size_read
= fread(buffer
, 1, size
, fileio
->file
);
180 int fileio_read(fileio_t
*fileio
, u32 size
, u8
*buffer
, u32
*size_read
)
182 return fileio_local_read(fileio
, size
, buffer
, size_read
);
185 int fileio_read_u32(fileio_t
*fileio
, u32
*data
)
191 if ((retval
= fileio_local_read(fileio
, 4, buf
, &size_read
)) != ERROR_OK
)
193 *data
= be_to_h_u32(buf
);
198 int fileio_local_fgets(fileio_t
*fileio
, u32 size
, char *buffer
)
200 if( fgets(buffer
, size
, fileio
->file
) == NULL
)
201 return ERROR_FILEIO_OPERATION_FAILED
;
206 int fileio_fgets(fileio_t
*fileio
, u32 size
, char *buffer
)
208 return fileio_local_fgets(fileio
, size
, buffer
);
211 int fileio_local_write(fileio_t
*fileio
, u32 size
, u8
*buffer
, u32
*size_written
)
213 *size_written
= fwrite(buffer
, 1, size
, fileio
->file
);
218 int fileio_write(fileio_t
*fileio
, u32 size
, u8
*buffer
, u32
*size_written
)
222 retval
= fileio_local_write(fileio
, size
, buffer
, size_written
);
224 if (retval
== ERROR_OK
)
225 fileio
->size
+= *size_written
;
230 int fileio_write_u32(fileio_t
*fileio
, u32 data
)
236 h_u32_to_be(buf
, data
);
238 if ((retval
= fileio_local_write(fileio
, 4, buf
, &size_written
)) != ERROR_OK
)
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